https://doi.org/10.1140/epjc/s10052-024-12430-4
Regular Article - Theoretical Physics
Measuring hadronic Higgs boson branching ratios at future lepton colliders
1
Institut für Theoretische Physik, Georg-August-Universität Göttingen, Göttingen, Germany
2
Institute for Particle Physics Phenomenology, Durham University, DH1 3LE, Durham, UK
a
max.knobbe@uni-goettingen.de
Received:
4
December
2023
Accepted:
10
January
2024
Published online:
25
January
2024
We present a novel strategy for the simultaneous measurement of Higgs-boson branching ratios into gluons and light quarks at a future lepton collider operating in the Higgs-factory mode. Our method is based on template fits to global event-shape observables, and in particular fractional energy correlations, thereby exploiting differences in the QCD radiation patterns of quarks and gluons. In a constrained fit of the deviations of the light-flavour hadronic Higgs-boson branching ratios from their Standard Model expectations, based on an integrated luminosity of 
, we obtain 
confidence level limits of 
and 
.
© The Author(s) 2024
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